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3 years ago

{(7,4),(6,3),(5,3)}function?Explain

Mathematics

1 answer:

poizon [28]3 years ago

8 0

Yes it is a function because there are not any repeating x values ( first number in each set of parentheses)

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Jon makes $76 in 12 hours of work for his mom. How much would Jon make in 20 hours of work.

Lyrx [107]

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around 126

Step-by-step explanation:

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3 years ago

The _______ position of a decimal is two numbers to the right of decimal point.

Olegator [25]

B. Hundredths

It goes tenths, hundredths, thousandths

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4 years ago

Read 2 more answers

If a ball is dropped from a height of 18 feet, the function f(x) = 18(0.75)* gives the height

NeTakaya

Answer:

<h2>At the 7th bounce, the ball reached 2.3 feet height.</h2>

Step-by-step explanation:

The given expression is

$f(x)=18(0.75)^{x}$

This exponential function represents the movement of a bouncing ball after being dropped.

$x$ represents the bounce number.

So, at 7th bounce means $x=7$ , replacing this value in the function, we have

$f(7)=18(0.75)^{7}=18(0.13) \approx 2.34$

Therefore, at the 7th bounce, the ball reached 2.3 feet height.

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4 years ago

A 25 foot ladder leans against a house. How far is the foot if the ladder from base if the building if the top of the ladder is

vaieri [72.5K]

Answer:

Step-by-step explanation:

x^2+20^2=25^2

x^2+400=625

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4 years ago

Question 8 Find the unit vector in the direction of (2,-3). Write your answer in component form. Do not approximate any numbers

slamgirl [31]

Answer:

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

Step-by-step explanation:

Let be $\vec u = (2,-3)$ , its unit vector is determined by following expression:

$\hat {u} = \frac{\vec u}{\|\vec u \|}$

Where $\|\vec u \|$ is the norm of $\vec u$ , which is found by Pythagorean Theorem:

$\|\vec u\|=\sqrt{2^{2}+(-3)^{2}}$

$\|\vec u\| = \sqrt{13}$

Then, the unit vector is:

$\hat{u} = \frac{1}{\sqrt{13}} \cdot (2,-3)$

$\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$

The unit vector in component form is $\hat{u} = \left(\frac{2}{\sqrt{13} },-\frac{3}{\sqrt{13}} \right)$ or $\hat{u} = \frac{2}{\sqrt{13}}\,i-\frac{3}{13}\,j$ .

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3 years ago

{(7,4),(6,3),(5,3)}function?Explain​

{(7,4),(6,3),(5,3)}function?Explain